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LTNF 1 aka PNG 144.8+65.8, 





    
        

            Peter Goodhew
LTNF 1 aka PNG 144.8+65.8

LTNF 1 aka PNG 144.8+65.8

Technical card

Resolution: 3832x2184

Dates:May 5, 2019

Frames:
Astrodon Blue: 20x300" bin 1x1
Astrodon Green: 20x300" bin 1x1
Astrodon Lum: 20x300" bin 1x1
Astrodon OIII 3 nm: 40x1800" bin 3x3
Astrodon Red: 20x300"

Integration: 26.7 hours

Avg. Moon age: 0.54 days

Avg. Moon phase: 0.32%

Astrometry.net job: 2700922

RA center: 179.437 degrees

DEC center: 48.946 degrees

Pixel scale: 0.533 arcsec/pixel

Orientation: 0.908 degrees

Field radius: 0.327 degrees

Locations: e-Eye, Fregenal de la Sierra, Extramadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura

Description

A planetary nebula in the constellation of Ursa Major.

Exceptionally faint and rarely imaged because it's so faint. Indeed the only previous images I could find were
http://astrofotos.at/Bildergallerie/sternenhaufenetc/#&gid=1&pid=ltnf1-cut
https://www.astrobin.com/400910/B/

A very obscure high excitation planetary nebula discovered in 1995 by James Liebert, Richard Tweedy, Ralf Napiwotzki and Michael Fulbright. At its heart is the eclipsing binary star system BE Ursae Majoris.

This is so faint that it's almost invisible on 1800s exposures, so I had to resort to capturing OIII data at bin 3x3, and lots!
There is a tiny amount of Ha, but even 1800s at bin 4x4 it was too faint to use.

Many thanks to Sakib Rasool for suggesting this target to me.

Comments

Author

PeterGoodhew
Peter Goodhew
License: None (All rights reserved)
964
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Revisions

  • LTNF 1 aka PNG 144.8+65.8, 





    
        

            Peter Goodhew
    Original
  • Final
    LTNF 1 aka PNG 144.8+65.8, 





    
        

            Peter Goodhew
    B

B

rotated

Sky plot

Sky plot

Histogram

LTNF 1 aka PNG 144.8+65.8, 





    
        

            Peter Goodhew